Q: There's a certain subject on Wikipedia that is being vandalized with propaganda material on Wikipedia. how do you report this? Each time someone erases it, some one adds more false information propaganda.
A: The best place to start is on the talk page of the article. If that does not produce results, go to Wikipedia:Administrators' noticeboard and place a notice on the page that seems to deal with the problem. Without knowing the details, I would suggest Wikipedia:Administrators' noticeboard/Incidents. No one can help you with a complaint about a "certain subject". It is important to share the exact name of the article and the nature of the "vandalism" and "propaganda". It is also helpful to cite specific edits which show the nature of the editing you object to and who is doing it. You can locate those edits in the editing history of the article. Copy the urls of the individual edits into any complaint you made so it is easy to get a sample.